Perforating machine



C. R. CARLETON. PERFOHATING MACHINE. APPucATmN FILED JuLYzo. 1920.

2. w wn r @m MH c@ Q,... .ds m d C m.. M L mx au. u@ la C. R. CARLETON.

PERFORATING MACHINE.

APPLICATION FILED JuLYzo, |920.

Patented May 16, 1922 SHEETS-SHEET 2.

C. R. CAHLETON.

PERFORATING MACHINE. APPLICATION FILED JULYZU. 1920. 94@,163 PatentedMay16,1922.

TSHEETS-SHEET 3.

Q CM 7a Cmau Snom/LTO@ qw Zwaan-w C. R. CARLETON. PERFORATING MACHINE.APPLICATION FILED 1uL.Y2o. 1-920..

7.v SHEETS-SHEET 4.

3 "b Smuamffoz,

C. H. CARLETON.

PERFORATING MACHINE. APPLICATION FILED 1uLY20.192o.

Patented May 16, 1922.

YSHEETS-SHEET 5.

GJGS

C. R. CARLETON. PERFORATING MACHINE.

APPLICATION FILED IuLYzo. 1920.

l l 6, l 68, Patented May 16, 1922.

ZSHEETS-SHEET 6.

C. R. CARLETON. PERFORATING MACHINE.

APPLICATION FILED JULI/20, 1920.

Patented May 16, 1922.

7 SHEETS-SHEET 7 EDCDDDD DDU-TEDUC 'J1/wem fot,

NIA,

.STATES CHARLES R. CARLETON, F BROOKLYN, NEW YORK.

PERFORATING MACHINE,

Lerares.

Specification of Letters Patent. Patented Flayg 16., 1922.

Application led July 20,-120. Serial No. 397,593.

To all whom it may concern:

, Be it known that I, CHARLES R. CARLI-rmx,

citizen of the United States, and resident of Brooklyn, in the county ofKings and State of New York, have invented certain new and usefulImprovements in Perforating Machines, of which the following is aspecification.

This4 invention rela-tes to a machine for perforating mot-ion picturefilms, having more particular reference to a perforating machine inwhich t-he feeding, perforating and rewinding of the film are allmechanically accomplished.`

The invention VAhas for general objects to minimize or eliminate thechance of the oil used in lubricating the machine getting on the film;to render the operating mechanism easily accessible -for replacement orotherwise, and to provide a. machine. of generally simple, compact, anddurable construction.

For further Vcomprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying draw-- ings, and to the appended claims in which thevarious novel features of the invention are more particularly set.forth.

Fig. 1 of the drawings is a front elevation 1of 'a perforating machineconstructed according to the invention.

Fig. 2 is an enlarged partial transverse.

" whlch extends downwardly at the rear of section on the line 2-2 ofFig. 1.

Fig. Sais a detail longitudinal section on the line 3-3 of Fig. 2.

' Fig. 4 is a horizontal section on the line 4--4of Fig. 3. Fig. 5 is atransverse section on the line 5-5 of Fig. 3.

Fig. 6 is'a transverse section on the line Fig. 7 .is a fragmentaryaxial vertical seic- 'tion of the film roll supporting device on thefeed side of the machine.

Fig. 8 is a detail longitudinal section on the line 8--8 of Fig. 2.

Fig. 9 is a detail sectional view illustrating the construction of themain drive shaft, the section being transverse to the machine butlongitudinal to the shaft. f Fig. 10 is a detail plan view of the dieand the means for guidingthe film kacross the same.

Fig. 11 is a fragmentary longitudinal section taken on the line 11-11 ofFig. 5.

Fig. 12`is a detail front View of the punch with the face plate removed.

As here embodied the lperforating machine comprises briefly a punch headcarrying a series of punch elements for perforating the film, and pilotelements for ensuring exact positioning thereof; a stripper for removingthe film from the unches and pilots, a step by step shifter i oradvancing the film to the punches, and film feeding and rewindingdevices.-`

As here -shown the operating mechanism for the above devices issupported by and partially enclosed within, a casing 1 which 1s boltedon top of a suction box 2, the latter being supported on legs 3. Uponthe top of this casing, midway between opposite ends thereof, issupported a die 4 which is adjustably securedIl toI the casing by capscrews 5 passing through slots 6 in exten'- sions 7 formed on oppositesides of the die. The die is formed with two rows of perforations 8spaced as required for perforating the film. An opening 1 is formed inthe top of the casing 1 under the die 4, a conduit- 1a extendingfromthis opening toward one end of the casing and having a pipe 9leading downwardly therefrom to the suction box2 for the purpose vofremoving the punchings Clo-operating with this die is a punch which herecomprises a ram element 10 the casing 1 and has an integral' forwardlyprojecting head 11 which overhangs the dle 4,' further reference to t-heAparts carried by this head, being presently made. The ram` spiral gear16 on another shaft 17 whichextends longitudinally of the casing 1 andserves to operate the film feeding and rrewinding devices. The oppositeends of this shaft extend through and are journaled in hollow arms 18,(Fig. 8) bolted on 'opposite sides 4of the casing 1, and have each fixedthereon aY spiral gear 19.which meshes with a like gear 20 on the lowerend of a.` shaft .ends, (Fig. 1), the roller 25 which is on the feedingside of the machine having a smooth periphery while the roller 2T on there-winding or take-up side of the machine 1s toothed.

- Co-operating with the rollers 26 and 2 are usual film guiding rollers28, while a suction cleaning device 29 of ordinary construction throughwhich the film passes is located immediately below the roller 2T, thissuction device being connected by a pipe 30 with abcoupling member 3l onthe side of the suction box 2' which is adapted to have a pipe from asuitable suction fan or other device connected thereto.

Upon the upper ends of the standards 22 are fixed the usual guide disks32 for the roll of the film, the standard on the takeup side-having theusual arbor 32 driven by a belt 33 from the roller shaft 25, this beltbeing preferably made from a coiled wire. Upon thel standard 22 on thefeed side of the machinel is carried a cylindrical arbor 34, (Figs. 1and 7) pressed by a spring 34 against' the disk 32 thereby forming aslight frictional retardation to the rotation of the arbor. The roll ofilm is held upon this arbor by a. rod 35 which projects down in front ofthe disk 32 from ahead 35 having an integral pin 35al supported in theupper .end of the standard 22, a coiled spring 35'J being adapted tohold a V-projection 35c on the head 35 in yielding engagement with acomplementary notch in the adjacent face of the standard and soyieldingly hold` the rod in position projecting across the face of thedisk V32 while permitting it to be readily swung to one side whendesired.

Formed in the punch head 11 is a chamber 11 (Figs. 2 and 12) in whichare disposed a pair of blocks 36 and 36 which carry the punches 37 andthe pilots 37 respectively` the pilots being somewhat longer than thepunches so as to enter the previously made perforations in the lm beforethe punches reach the latter, the ends of the pilots being tapered toaccommodate and correct any slight inaccuracy in positioning ofthe`film.

These blocks 36, 36 are secured in position by means of a bolt 38passing through registering slots 38 in the blocks 36 and 36 andsupported at opposite ends in cheek plates 11a forming the side walls ofthe. chamber 11. Disposed in thechamber 11 and resting on the blocks 36and 36 are plates 39 which are engaged on their upper sides by screws 39which are threaded downwardly through the head 11 to provide forvertical adjustment of the punches and Idirect the film on to the die.

pilots. The front wall of the chamber 11 may be formed by a removableface plate 11b.

Carried upon the top of the casing 1 on opposite sides of the die 4 arefilm guiding and supporting devices which aie in the main each ofsimilar construction and arranged to prevent contact of the emulsifiedcentral portion of the upper surface of the film therewith. These filmsupporting and guiding devices comprise a pair of bed plates 40, 40 theformer of which is on the entering or feed side of the machine and thelatter on the discharge or take-up side. These plates are ofsubstantially similar construction and provided with centre and siderows of film supporting rollers 41 which project slightly above the topsurfaces of the plates. The plate 40 is ixedly secured on the casing 1while. the plate 40 is mounted to have transverse adjustment thereon soas to properly To this end the plate 40 is xed on a. bracket 42 which istransversely slidable on the end of the casing 1 and has swiveledtherein a screw 43 taking through a block 44 fixed to the end of thecasing. A set screw 45 which passes through the end of the bracket 42and is threaded into the block 44 serves to fix the bracket in adjustedpositions.

Co-operating with the plates 40, 40 are upper guide members which are inthe form of blocks 46, 46 slidable in frames 4T hinged at one side, asindicated generally at 48, to the casing 1. These blocks carry two rowsof side rollers 49 in juxtapositionto the corresponding rows of rollers41. these rollers 49 projecting slidably below the bottom faces of theblocks,'the centre portions of which may be longitudinally grooved as at50. The blocks 46, 46 are slidably suspended from the undersides of theframes 4T, having fixed projections 51 which extend upwardly through thecentral openings of the frames and project freely over the sides of thelatter. From these projections pins 52 extend outwardly, passing freelythrough the outer members of the frames, these -pins being encircled bycoiled expansion springs 53 which bear between the frames and theprojections 51 and normally urge the blocks 46, 46 inwardly toward thedie 4.

The purpose of this slidable mounting of the blocks 46, 46 is to permitof their being moved outwardly to clear the punch head 11 when it isdesired to swing them away from the plates 40, 40 for insertion of thefilm or other purposes, and means are preferably provided to ensure ofthe blocks being moved outwardly to clear the punch head before beingswung back. As here shown these blocks carry fixed pins 55 which engageunder fixed hooked elements 56, clearing the same when moved outwardly,the projections 51 being adapted to engage behind retaining posts 57when the frames mitting the bar 58 to yield` to accommodate itself toslight variations in the width of the film.

The mechanism of the machine is all driven from a common main shaftwhich has already been referred to and which is illustrated in detail inFig. 9. being of sectional construction arranged to permit of the readyremoval of the stripping and shifting devices which are arranged as asingle unit removably mounted in the casing 1. This shaft comprises asleeve 60 having an integral eccentric 61 between its ends whereby itoperates the ram '10 to which latter itis connected by means of a link62 pivotally attached at Aits upper end to a pin 63 on the ram andhaving a strap or collar 64 on its lower end which encloses theeccentric 61, an anti-friction bearing 65 being interposed between theeccentric and collar. This sleeve 60 extends through and is-journaledinthe offset 13 before referred to, an anti-friction bearing 66 beingprovided at this point, a nut 67 being screwed upon a left hand screwthreaded port-ion of the sleeve just outside the bearing 66, the sleeve'terminating in a diminished portion 68 on whichis mounted a steppedpulley 69: This pulley is connected by a belt 70 with another steppedpulley 71 on the shaft of an electric motor 72 carried in a box 73supported by the legs 3 under the suction box 2.

The forward end of the sleeve 60 engages, b means of transverse tongueand groove e ements 60', the worm pinion 15 which latter is supported ona front shaft section 75 which has formed integral thereon a series ofcams for operating the stripper and shifter devices, the pinion 15 beingconnected to this shaft sectiony 75 for rotationv by transverse tongueand groove elements 75. The sleeve 60, shaft section 75, and pinion 15,are all locked together by means of a headed screw 75 which 1s enteredfrom the rear end of the sleeve and is screwed into a tapped recess inthe rear end of the section 75, the forward end of which is journaled ina removable plate 77 closing an opening vin the frontof the casing 1 andcarrying the shifter and stripper de- VlCeS.

This block is fixed on the upper end of a vertically movable slide 82having a dovetail engagement, as shown in Fig. 4. with a horizontallymovable slide 83 guided in a guide 811 fixed on the plate 7 7 The slide83 receives horizontal motion from a cam 85 on the shaft section 75which engages between a pair of vertically faced projection 86 and 87 onthe face of the slide 83, the latter projection serving as a guide forthe slide 82. The slide 82 receives vertical motion from a second. cam88 on the shaft section 75 which engages a roller 89 mounted near oneend of a rocker lever 90 fulcrumed at itsopposite end as at 91 on aprojection 92 from the plate 77. This lever is connected as at 93 to ablock 91 slidable in a horizontal groove 95 in the slide 82. The cam' 88bears upwardly against the roller 89- and thus moves the slide 82upwardly, the latter being returned lor moved downwardly by a coiledexpansion spring 96 bearing between the two elements 97 and 98 of acompound or telescopic link pivotally connected at its upper end to thefree end of the lever 90 and at its lower end to the plate 77. As willbe apparent from the foregoing the block 80 will have both a horizontaland a vertical movement imparted thereto, the cams 85 and 88 being soarranged as to have the two movements occur in'rotation. The ins 81, orclaws as they are preferably deslgnated. are accommodated inlongitudinal slots 99 of the bed plate 40', thevblock 46 being alsogrooved on its underside as at 100 to accommodate the upper ends of theclaws which in their upper position project, as will be apparent. abovethe meetlng points of the lower and upper sets of rollers 41 and 49. Itwill also be understood of course that the parts will be, so arranged asto have the claws 81 register exactly with the perforations which havejust been made in the film.

The film is stripped from the punches and pilots when the latter areraised, by means of a stripper comprising a plate having perforations106 corresponding in arrangement to those of the die 4. this platehaving an integral extension 107 fixed on the upper end of a slide-block108 guided in a suitable recess 108 in the plate 77 The slideblock 108is formed near its lower end with a projecting finger 109 which isengaged on its underside by a cam 110 on the shaft section 75, an,expansion 'spring 111 which bears on the upper side of the finger 109normally urgingV the stripper downward. Downward movement of thestripper is limited by means of an adjustment screw 112 which isthreaded upwardly through the plate 77 into the recess 108', the screw112 being preferably adjusted so as to prevent the weight ofthe stripperbearing down onl the lm. v

In the operation of the machine the unperforated roll of film is placedon the arbor 34, the film, which is indicated in dotted lines at X'inFig. 1 is suitably led around the roller 28 and betweenv the bedplates40, 40 `and blocks 46, 46', passing over the die 4, the end of the filmbeing passed upwardly through the suction cleaner 29, around the roller27, to the arbor .32. Upon the motor being started and the main shaftoperated the rollers 26 and 27 and arbor 32 will be rotated causing thefilm to be unwound from-the arbor 34 and wound on the arbor 32. As-thepunch head reciprocates the punches 37 will perforate the film, thepilots 37 entering the previous p erforations and accurately positioningthe lm. While the punch head is raising the Acam 110 allows the stripper105 to descend,

the claws 81 at the same time rising to engage in previously madeperforations and when the punches and pilots have cleared the film theclaws are moved horizontally I the proper distance, bringin the lastmade perforations under the pi ots, the claws dropping down as the punchhead descends.

As will be apparent in this improved perforator the operating mechanismis located below the path of travel of the film so that danger of oildropping on the latter is obviated. Also the operating mechanism issubstantially all enclosed and out of the way while at the same time itis easily accessible,-

the stripper and shifting mechanism being readily removed as a unit byloosenlngscrew 76 and removing the bolts holding the plate 77 in place,the removal of this plate eX- posing the gears and shaft for operatingthe feed and take-up rollers 26 and 27. Also the punchings from the filmare carried away so that danger of these punchings catching on fire iseliminated.

What I claim is as follows 1. Ina film perforat-or, a casing, a pair ofvertically slidable elements located respectively at the rear and frontof the casing, the rear element having a forwardly projecting' punchhead formed onits upper end and the front element having a strippermember projecting rearwardlyfrom the vtop thereof under the said punchhead, film advancing means carried by the casing between the saidslidable elements, and aV shaft eX- tending through said casing fromfront to rear and operatively engaged with said slidable elements andsaid film advancing means.

2." In a film perforator, a casing, a pair of vertically slidableelements located respectively at the rear and front of said casing, aremovable plate supporting the front element, a punch head and aStripper member carried respectively by the rear and front elements, ashaft formed in two sections operatively engaged with the said slideelements, onesection of the shaft being mounted in the said removableplate and the other section being mounted in the main body of thecasing.

3. In a film perforator, a casing, a-pair of vertically slidableelements located respectively at the rear and front 4of said casing, a

removable plate supporting the front element, a punch head and astripper member carried respectively by the rear and front elements, ashaft formed in two sections lateral projection from said slide block,a-

cam engaging said projection and adapted to raise said slide block, anda spring bearing downwardly-on said projection to cause the strippermember to engage with the film.

5. In a film perforator, a casing, a removable plate on one side of saidcasing, a punch, film stripping and shifting devices mounted on saidremovable plate, a shaft for operating said punch and stripping andshifting devices, said shaft being formed in separable sections one ofwhich is journaled in the said removable plate.

6. In a film perforator, a casing, a removable plate on one side of saidcasing, a punch, film stripping and shifting devices mounted on saidremovable` plate, a sha-ft for operating said punch and strip ing andYshifting devices, said shaft being ormed in separable sections one ofwhich is journaled in the said removable plate, the other section beinghollow, and a screw inserted through the hollow section and engaging thefirst mentioned section to hold the two shaft sections together.

7. In a film perforator, a punch, and means for intermittently advancingthe film under the punch comprising a shaft, a pair of cams on saidshaft, a horizontally movable slide, a second slide adapted to movehorizontally with the jrst slide and to have vertical movementindependently thereof, and operative connections between the said slidesand the respective cams.

8. In a film perforator, a punch, and means for intermittently advancingthe film under the punch comprising a shaft, a pair of cams on saidshaft, a horizontally movable slide, a second slide adapted to move'horizontally with the first slide and to have vertical movementindependently thereof, and operative connections between the said slidesand the respective cams, the operative connect-ion between theA rstslide and its cam comprising a pair of vertically faced projections onsaid slide projecting on opposite sides of said cam.

9. In a film erforator, a punch, and means for intermittently advancingthe film under the punch comprising atshaft. a pair of cams on saidshaft` a. horizontally movable slide, a second slide adapted to movehorizontally with the hist slide and to have vertical movementindependently thereof, and operative connections between the said slidesand the respective cams, the operative v connection between the secondslide and its cam including a rocker lever, and a. block carried by saidlever engaging in al horizontal lgroove in said slide.

10. In a film perforator, a casing, a punch, film advancing meanscomprising a sectional shaft, a. pair of cams on said shaft, ahorizontally movable. slide, a. second slide adapted to movehorizont-ally with the first fslide and to have vert-ical movementindependently thereof, means operatively connecting said slides and'`the respective cams, and a removable pla-te forming apart of said casingupon which said film advancing means is mounted.

11. In a film perforator, a punch, a die, a device for supporting andguiding the film while being. fed to the die, a casing on which 'saiddevice is mounted, and means for adjusting said device transversely tothe path of movement of the film, comprising abracket to which saiddevice is fixed, and an adjusting screw swiveled in said bracket andthreaded through a fixed part on the said casing.

12. In a film perforator, a punch, a die, a device for supporting andguiding the film while being fed to the die, said device includingseparate members adapted to engage the upper and lower surfaces of the1m,-

and means hingedly mounting the upper members whereby they may be swungback from operative position.

13. In a film perforator, a die, a. punch, a

punch head, separate film' guiding members adapted to engage the upperand lower surfaces of the film', the upper members normally projectingunder the said punch head, hinged frames in which said upper members areslidablyv mounted, and means locking said frames against swingingmovement when the said upper members are in normal position.

14. In alm perforator, a die, a punch, a punch head, separate filmguiding members adapted to engage the upper and lower surfaces of thefilm, the 1upper members normally projecting under the said punch head,hinged frames in which said upper members are slidably mounted, andmeans locking said frames against swinging movement when the said uppermembers are in normal position, said means being automaticallyreleasable by sliding the said members in the said frames.

15. In a film perforator, a die, a punch, a punch/v head, separate filmguiding members adapted to engage the upper and lower surfaces of thefilm, hinged frames in which the CHARLES R. CARLETON.

